For Beginner to PsychToolBox of Matlab (01)

1) Task_01: drawing a square of 100 x 100 pixels in the center of screen
任务01：画一个100x100像素的方块在屏幕中央

Tips:
using Screen() function. (get help by >> doc screen or >> help screen)
使用>> doc screen 或者 >> help screen 获取Screen() 函数帮助

open window -> draw window -> close window

For Beginner to PsychToolBox of Matlab (00)

0) Basic Matlab function
Matlab基本命令

doc, help, which, size, length, class, ', disp,

in the command line:
在主命令行界面：
>> doc help
>> help doc
>> which doc

>> a = [1, 2]
a =

     1     2

>> size (a)
ans =

     1     2

>> length (a)
ans =

     2

>> class(a)

ans =

double

>> a'

ans =

     1

>> disp(a)
     1     2

Some Tips for Matlab

1) sym
Create symbolic objects
http://www.mathworks.com/help/symbolic/sym.html

2) profile

Profile execution time for function

http://www.mathworks.com/help/matlab/ref/profile.html